Improving pressure from an existing Sprinkler head

Discussion in 'Irrigation / Sprinkler Forum' started by RayWar, May 1, 2017.

  1. RayWar

    RayWar New Member

    May 1, 2017
    Boston, MA
    Hello All, looking for some help with some pressure issues. I was having coverage issues so I decided to move the existing sprinkler head (Sh1) which is fed by ½ inch poly flex pipe 7 feet further into the corner and then I added new sprinkler head (SH2) 15-20 feet from SH1 using a connecting tee right before SH1. The problem I am having is the pressure is not as strong as I would like. My existing system was installed with 1inch distribution pipes that steps down to 1/2 inch to feed the individual sprinkler heads. I don't have the option to find the 1 inch pipe that feeds that zone with SH1 and SH2. Any suggestions?
    I was told one possible solution is that if I step up the ½ inch to ¾ inch and then only use ½ to feed the sprinkler heads then I could get a little more pressure. Does this make sense or is even plausible? Sorry for the long message.
  2. valveman

    valveman Cary Austin Staff Member

    Mar 15, 2006
    Pump Controls Technician
    Lubbock, Texas
    If you are working off a pump system you maybe able to just turn up the pressure. And if the pump is cycling on and off while the sprinklers are running, cycling is why the pressure is low.
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  4. WorthFlorida

    WorthFlorida The wife is still training me.

    Oct 28, 2009
    Orlando, Florida
    Going from 1/2 to 3/4 to 1/2 will not increase pressure. You did not say what type of sprinkler head you have but if they are pop ups, there is a filter inside of it and it could be clogged up. I've seen debris (mud and stones) inside the pipe that could be blocking water flow. At these sprinklers remove the spray heads or the entire sprinkler and flush the lines. Sometimes, there could be a leak at a glued fitting or from a cracked pipe causing it to lose pressure.

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